Exoplanet · gas giant
HIP 65407 b
HIP 65407 b is a gas giant orbiting the star HIP 65407. Its year lasts 28.1 Earth days. It was discovered in 2016 by the Radial Velocity method.
| Host star | HIP 65407 |
|---|---|
| Distance | 201.5 light-years (61.8 pc) |
| Orbital period | 28.1 days |
| Orbital radius | 0.177 AU |
| Eccentricity | 0.140 |
| Radius | 14.3 R⊕ · 1.28 R♃ |
| Mass (minimum) | 136 M⊕ · 0.428 M♃ |
| Density | 0.256 g/cm³ |
| Equilibrium temperature | 611 K (338 °C) |
| Stellar flux received | 20.8 × Earth |
| Discovery method | Radial Velocity |
| Discovery year | 2016 |
| Discovered by | Haute-Provence Observatory |
Habitable zone
Inside the inner edge of the habitable zone: it receives 20.8 times the light the Earth does, too hot to keep liquid water on its surface.
Its star in the sky
In the planet's sky its star is a disc 2.9° across: 5.4 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 9.38. Visible from the whole Northern Hemisphere and south to latitude 41° S. North of latitude 41° N it never sets. It stands highest at midnight in April, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1824. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.6 million years.
Planets in the same system
- HIP 65407 c 67.3-day orbit · 13.9 R⊕
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.